Напряженное состояние толстых осесимметричных железобетонных плит, опертых по наклонной поверхности

Abstract

The article considers the development of methods for calculating the stress state of axisymmetric cone-shaped thick slabs simply supported on an inclined surface on the bearing walls of the shell, thus forming the end elements of the pressure vessel. The internal pressure acts on the slab in the form of a uniformly distributed static load. The research methodology in this paper is based on analytical and numerical methods of calculation, taking into account the specific behavior of concrete under conditions of triaxial compression. Using the basic provisions of the theory of plasticity behavior adopted in the form of the strength criterion of P. Balandin, there has been obtained a solution to the problem of determining the pressure capability. The results obtained in analytical and numerical methods can be used at projecting similar structures at the schematic design stage. Herewith, a comparative analysis of the calculation results has shown the adequacy of the proposed methods.